shipley



L a By I Dec. 6, 1927. v

B. M. SHIPLEY CASH REGISTER Filed Jan. 10, 1925 3 Sheets-Sheet. 1

FIG-.3

Berni: M. Shipley MM WW B. M. SHIPLEY CASH REGISTER Filed Jan. 10. 1925 3 Sheets-Sheet 5 Berni: M. Shipley 1 instances this rebound is sufficient to cause a Patented Dec. 6, 1927.

umren BEBNIS M. sHIPnnY. ornnyromonioyessienom BY MESNE' assienmnn'rs. to. T11 NATIONAL CASH REGISTER 7 company, or amon; onto; A, oonronnriomot MARYLAND.

Application. file d". January This. invention relatesto cash. registers,

' 1.311.,8845. issued to FrederickiL. Fuller, Auggust: 5519M); and-i a; (lo-pending application by the present: applicant, Serial: No. 610. 276, fileddanauaryfl; 1923.. I Q 1;

The principal ob'ect; of this; lnwention 1s to"providepmechanism to prevent; neb'ou'nd'orf spring actuated printing hammers.

ith this and incidental-objects 1nv1ew, the invention consists of certain novel fear tures of construction and. combinations of parts, theaessent-ial elements ofi which are set forth in appended claims and preferred: forms of embodiment ofwhich are herein?v after described with reference to; the drawings which accompany and: form part of this specification. T

Fig. 1 is a side elevation; of. the printing; hammer and its associated mechanism.

Fig. .2 is a plan View of the meehanisin 1 shown in Fig. 1. Fig. 3 is a detail' side ViGW',- on an, enlargedscal'e, oi the impression hammerandthe mechanism for actuating; it, sh'm'vn in'the position whieh it: assumes just before be ng:

The-high polnt' 33, however, is only Fig. 6 is a side View of another modified" form o fthe mechanism shown in Fig. 3. I

Fig. 7 is a side View of still another modified formof the mechanism shown: in Fig. 3.

Fig. 8 isa side view oi still another modified form of the mechanism shown, in Fig. 3.

l n, general.

mentioned co-p' ending applieationwhen the hammer fall's baek to its normal positiomit reacts agalnst the dIl'V-Hlg spring. which causes the hammer to rebound, a'n'd ln some second impress-ion tobemade; Inthepres ent' eppheet n th re We fi meets-se m GASH REGISTER.

.10. 1325'. Serial 1m. 1 ,586.

shown, eaeh of: which has; a: means. for stop--.

p gthe hammerbe fozre it can neact against its-drivmg spring. v

Driving mechanism. In the. embodiments herein; shown the mechanism is; pe a ed from; a main; printer. cam sha t 30. 1 an.d-2)-,:Whioh. maybe: driven in any; suitable ln'ann. Y In the. Q- me t oned patent and; application, his

03111 h "dr ten-fiiom'. hei l iflil e opefsatin shaft of; the lllflchineywhiChin' tnrn ifsld-r'gifuen by a motor. S;lida-bf1; 'y-'mounted;on this:v shaft. 30; and keyedthe-retogis a (la-m1 3.1 haying two high points 32 and; 33. Loosely mounted; on;- a shaft 34 is a bell, crank; 35,; the upper end 0t Which is adapted to; be engaged. by the abovementioned hi-gh points-32and "The I lower arm of, the hell; crank: has pivoted thereto. alink; 36-f(-se e:a lSo Fig. 5)), which is bi f-ui oated'. at 87 t0 Sii'rroux id a studs 38" mounted on an arm? 39. The arm 39 is con-: nected' to an arm 40, by a' cross, member 41-. The arms 39 and 40 are loosely mounted on ashafat42-.-

The. dam s; s dablymounted on the shaft 30 so that. tiheha mmeli can be 'controlled to take one, or two impressions. The point 32 extends across thewidlth ot the cam'-' substantially one-half: the Width; of the cam 31. From this it can'be; seenthat iii the cam; 3k is. shifted to one position, twoximpressions are takenywhile if the cam-is shifta ed tofthe other" position only one P $Si 1 s a e This: shifting meeha-:

can be hadbyreferri ngztowthe above-men'- tioned c pendiing app ieati nlmprsf sz'bwkw e mpression hammer 5.0 is pivo ed @1111. the beforementioned shaft 42.; mount-.- ed 011,; the? sh'eitAZ is abell'clzainkg 5.l h vixtg tnwe d trend ng siren 2 w1et etms yenseees the. A lower arm-53 of the 2 9 a tud: Mt h spring 55is secured, the other end of which is hooked on a "stud 56? carried by affifa'me 57 mounted-9 11 1 .befotementioned bell. emu-k is a shed, .0 whi h is? adapted t enga e" a titer-cation. gt an aim fit having an up as a stop for the cross member d1 thereby limiting the movement of the bell crank 51. From the above description it can be seen that when thecam shaft 30 is given a rotation the high points 32 and 33 will alter nately cam the bell crank35 in a clockwise direction, and through the link 36 rock the cross member 41in a clockwise direction. The cross member 11 will rotate the bell crank 51, and throughthe arm 53 stretch the spring 55. This rotation of the bell crank 51 causes counter-clockwise rotation of the arm 61 and thereby rocks the arm 62 from underneath the stud 63, which permits the hammer 50 to be pulled down to the posi tion shown in Fig. 3by the spring 64. Vhen one of the high points .32 or 33 passes from underneath the bellcrank 35, the spring causes rapid counter-clockwise movement of the bell erank51. The bell crank 51in turn rapidly rotates the arm 61, which, through its engagement with the stud 63, cams the hammer 50 upward. The cross member 41 will be suddenly stopped by the lug and will therebystop the bell crank 51 and the arm 61. The arm 50 will move on by reason of its momentum to strike type carriers '72 a blow and make an impression on the record material which has been previously laid on a slip table 73. At this time the arm 62 will have been returned to the position shownin Fig. 1. lVhen the arm 50 settlesback to its normal position after striking the typewheel 72 the stud 63 again engages the arm 62. which is so disposed on a shaft 67 that the force of the returning hammer is entirely takennp by the shaft 67.

In the above described co-pending application this return force of the hammer is taken up by the spring 55. which spring is stretched sutlicientlyto cause the hammer to be again carried against the typewheel 72 and in this manner cause a second impression to he made. i

In the present application only one hourmer 50 has been shown. l-lowever, it is apparent that any numberol hammers may be operated by the cross member 41, as is disclosed in the above mentioned co-pending application.

In the modified form. as shown in Fig. 4. the same driving mechanism is used. as shown in Fig. 1. The only difference is in the method of driving the arm 61 and of rally the same manner.

stud 76 on the hammer 50 and a stnd77 on i the arm 61. \Vhen the bell crank 51 is cammed downwardly, the stud 60 engages a lug 78 to drive the arm 61 counterclockwise. lVhen the bell crank 35 (Fig. 1) is permitted to drop off the high point 33 of the cam 31 the bell crank 51 is moved rapidly in a counter-clockwise direction earrying a projection 79 against the stud 63 on theha-mmer 50 and thereby forcing the hammer against the typewheel 72. The spring 7 5 then carries the arm 62 underneath the stud 63 to prevent rebound in the same manner as in the first modification.

The modified mechanism shown in Fig. 6 is also driven by the same mechanism as that shown in Fig. 1. In this form the stud 63 is mounted on the hammer 50 a greater distance from its pivot than in the form shown in Fig. 1. The arm 61, which is of some what ditferent shape, but which performs the same function asthe arm 61 (Fig. 1), is mounted on the spring stud 56 instead of on a shaft 67. The bell crank 51 has a long arm 80 extending to the right (Fig. 6) carry-, ing the stud 60 which engages a bifurcatecil portion of the arm 61; The arm 80 has a flattened surface 81 adapted to engage a stud82 on the hammer 50 for forcing the hammer against the type carrier 72. When the cam 31 rotates thebell crank 51 in a eountier-clockwise direction in the manner lots described in connection with the modification shownin Fig. 1, the stud 60 disengagcs the arm 62 from the stud 63, thereby permitting the spring 64; to carry the han'nner downward sothat the stud 82 thereon enarm 61 dispose-id on the shaft 56 in the same manner as the arm 61 of the first modi lirationj is disposed on the shaft 67 and prevents rebound oi thehammer 50 in Jtl811l1t- The n'iodified form shown in Fig. 7 will nowbe described. An arm 61 is pivoted on the shaft 56 and has a downwardly projectspring 5 5 is stretched between this stud 8G and the stud 54 of the b' ll crank 51 The" Spring 55 normally tends torock the arm 61 in a clockwise direction, but is prevented from doing so because the bell'cran'k 51 is held in position" by tlie cross membeirtl'. hen the cam 31 rocks thecross member a l in a clockwise directioin'the arm 88 of the 7 bell cran 51 rocks the arm 61 vcouirter Clo ckin v wise and thereby permits the "stud6'3 to'en gage the surface 89 of the ariii 62. This movement of the bell crank 51 and the arm 61 stretches the spring 55. Vhen the spring 55 is released the arm 61 is given a rapid clockwise movei'nent and, through the en'- gagement of the surface 89 with thestud 6'3 cams the hammer 50rapidly. an upward direction. The bell crank 51 and the arm 61 are suddenl I stowed b the cross" the type carrier 72 a blow sufficient to take an impression therefrom. The hammer then drops back on the arm 62, as shown in Fig. 7.

The modified form shown in Fig. 8 will now be described. Pivoted on a' shaft 94 mounted in the frame 57 of the machine is a spring-actuated pawl 95 having a tail 96 projecting into the path of the cross member The pawl 95 is adapted to engage a stud 97 mounted on the hammer 50 when in the home position. The spring 64 is stretched between this stud 97 and the stud. 66 on the arm 53 of the bell crank 51. Also mounted on the hammer 50 is a stud 98 which is adapted to be engaged with an arm of the bell crank 51. hen the cam 31 rocks the cross member 41 in a clockwise direction the bell crank 51 rotates in a clockwise direction, but the hammer 50 is held in the upper position by the pawl 95 until the cross member 41 has rocked a distance suiticient to disengage the pawl 95 from the stud 97. This disengagement of the pawl 95 from the stud 97 is effected by the engagement of the cross member 41 with the tail 96 of the pawl. hen the pawl has become disengaged from the stud 97, spring 64; carries the hammer 50 downward until the stud 98 engages the arm on the bell crank 51. This clockwise movement of the bell crank 51 stretches the spring 55 until it is released by a high point or the cam 31 to cause rapid rotation of the bell crank 51. Thisrapid' hammer 50-drops back on the paavl 95, and

since the pawl 95 is on a fixed shaftthe blow is taken up the shaft and thus prevents rebound of the hamii'ier in a i'iia-nner similar to that i'l escribed 'in' connection with the above ii'ientionedforms.

iVh lethe forms of mechanism herein shown and described are admirably adapted to fullillthe objects primarily stated, it is to beunderstood that it is not intended to con of embodiment in various forms, all coming What is claimed is: V v 1. The combination of an impression h inmer; type carriers, an actuatorl or said hammer, means for stopping the actuator after it has given the hammer mon'ientum within the scope of the claims which follow.

suflic'ient to impel it'against the type carri ers, and means controlled by said actuator foupre'venting said hammer from reacting I a'gains't'the actuator.

The combination of an impression ha'm mer, type carriers, an actuator for said hammer, a spring for driving said'actuator,

means 'fordriving the actuator positively in one direction to store energy in said spring,

means for stopping said actuator after they spring is released and after said actuator has given the hammer momentum sufficient to impel it against the type carriers, and means controlled by said actuator for preventing said hammer from reacting against the acuator. V

3.' The combination of an linpression hammer, type carriers, means for impelling said hammer against the type carriers for taking an impression therefrom, an actuator for said impelling means, an arm normally.

engaging'the hammer for preventing the hammer from. engaging the impelling means and adapted to be disengaged from said hammer by said impelling means, and means for engaging said arm with the hammer after it has taken an impression from the type carriers for preventing said hammer from reacting against the impelling means.

A. The combination of an impression hammer, type carriers, a spring-actuated means for impelling the hammer against the i type carrier for taking an impression theretrom, an arm driven in one direction by said spring-actuated means to permit said spring-actuated means to become effective,

and means for moving said arm independent of said actuating means for preventing said hammer from reacting against the springactuated 'me ans.

5. The combination. of an impression hammer, type carriers, an arm for impelling said hammer against the type carrier for .taking an impression therefrom, a springa tiiet d mem er fer sav ng said ar and a shoulder on said arm adapted to stop said lmmmer ai'te' an impression has been taken.

(3. The combination of an impression hammer, type carriers, and a means for impelling the hammer against the type carrier and for positively stopping the hammer after the in'lpression has been taken.

7. The combination of an impression hammer, type carriers, and an arm having a surface adapted to impel the hammer against the type carrier and another surface adapted to stop the hammer after the impression has been taken.

8. The combination of an impression hammer, type carriers, and an arm having a surface adaptedto impel the hammer against the type carrier and another surface adapted to stop the hammer after the impression has been made said stopping surface disposed to prevent movement of said arm by the impact of the hammer.

9. The combination of an impression hammer, type carriers, a spring-actnated means, and an arm adapted to impel the hammer against the type carrier and to stop the hammer after the impression has been the said arm adapted to permit movement of the hammer independent of the springactnated means. i i 11. The combination of an impression said hammer against said type carriers a member for controlling said arm, a spring adapted to drive the said member and said arm, and a shoulder on said arm adapted to stop said hammer after an impression has been taken disposed to prevent the hammer from reacting, against the said impelling arm.

In testimony whereof I afiix my signature.

BERNIS M. SHIPLEY.

4O hammer, type carriers, an arm for impelling 

